Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
38 − 10 = ______
3 × 10 = ______
29 + 10 = ______
80 + 20 = ______
6 × 10 = ______
39 + 20 = ______
28 + 20 = ______
34 + 20 = ______
1 × 10 = ______
9 × 10 = ______
54 − 10 = ______
7 × 10 = ______
42 + 20 = ______
30 − 10 = ______
8 × 10 = ______
57 − 10 = ______
65 + 10 = ______
78 + 10 = ______
51 + 20 = ______
30 + 20 = ______
